Koreans Create a Spray That Heals Wounds in Seconds (3 photos)
While we're debating the realism of shooters, scientists from the Korean Institute of Advanced Technology (KAIST) have officially settled the issue of instant healing. Their new development, codenamed AGCL Powder, is the very same spray from the "game special forces" first aid kit that we're used to seeing on our computer screens. 
It works like cyberpunk magic: the powder instantly turns into a thick gel upon contact with blood. Literally seconds, and the bleeding is stopped. No more lengthy bandaging or trying to clamp an artery with dirty hands. This is a case where science doesn't just advance, but replicates the best mechanics from Resident Evil and Mass Effect.
The secret of the "magic" lies in a unique composition of alginate, chitosan, and gum. As soon as the powder touches blood, it reacts with calcium ions and transforms into an ultra-strong gel within a second. This "bio-plug" can withstand a pressure of 40 kPa—roughly the same as pressing hard on a wound with your hand, only the spray does it itself, from the inside.
The main goal is to save lives during the "golden hour" on the battlefield or in a traffic accident, when every second counts. 
The developers' particular pride is its durability. The "Life Canister" can be stored in a backpack in hot, 100% humidity conditions for up to two years without losing its properties. In animal liver tests, the drug not only stopped the bleeding but also helped the organ fully recover within two weeks. It seems the era of gauze pads and skin-cutting tourniquets is slowly but surely fading into history, giving way to technologies we once considered science fiction. 
The team working on this spray.
The development is currently undergoing field testing, but the prospects are dizzying. It seems that soon, instead of a band-aid with ducks, every first aid kit will have a spray can, turning a serious injury into a minor misunderstanding. Welcome to the future, where the phrase "just spray and it'll go away" will finally stop being a joke.
